.nav_avat{
  height: 60px;
  line-height: 60px;
  text-align: center;
}

.img_avat{
  width: 40px;
  height: 40px;
  margin-right: 8px;
}
img.img_avat{
  display: none;
}
.text_avat{
  display: inline-block;
  border-radius: 50%;
  background-color: #009688;
  font-size: 20px;
  color: #ffffff;
  line-height: 40px;
  text-align: center;
  vertical-align: middle;
}
i.iconfont{
  margin-right: 4px;
}
.layui-nav i.layui-icon{
  font-size: 16px;
  margin-right: 8px;
}
.layui-body{
  overflow: hidden;
}
iframe[name="show_body"]{
  width: 100%;
  height: 100%;
}